Upgraded Material for Better Protection - TOPMAX KN95 face maks adopt the electrostatic polarization precessed 2-layers of meltblown fabric, it has a higher absorbing ability and filtration efficiency than traditional disposable masks. The tested filter efficiency of this KN95 mask is >95%.More Breathable KN95 Masks - Compared with other masks that have to increase thickness to achieve the required filtration efficiency, ours can be lighter and thinner while ensuring the filtration effect. The electrostatic polarization processed meltblown fabric will spontaneously absorb the tiny particles (less than 0.5㎛) around them, so it has higher filtration efficiency with the same thickness.Fits Most Users' Faces - The face masks can properly fit most users' faces since we designed them regarding the average face shape of Americans. Designed in a 3D shape, you will have a larger breathing space while wearing the face mask. Meanwhile, the design reduces the uncomfortable feeling of heat and humidity, making wearing masks a more pleasant experience.Adjustable Nose Clip Tightly Fit Face - We embedded an invisible metal adjustable nose clip in the nose bridge of the mask, which makes the face mask tightly fit different face shapes. Besides, the design can effectively block the direct entry of unfiltered air from outside. For users wearing glasses, it will prevent glasses from being fogged up by breathing.Warm Tips: This KN95 mask is NOT N95 mask. For more information about KN95 masks please see the following before you purchase: amazon.com/AboutKN95s.